This is the list of the largest companies in the USA by market capitalization. Only the top american companies are shown in this list and companies that are not publicly traded on a stock exchange are excluded. The ranking and the market cap data shown on this page are updated daily. The market capitalization sometimes referred as Marketcap, is the value of a publicly listed company. In most cases it can be easily calculated by multiplying the share price with the amount of outstanding shares. CompaniesMarketCap is receiving financial compensation for Delta App installs. Stock prices are delayed, the delay can range from a few minutes to several hours. Company logos are from the CompaniesLogo.com logo database and belong to their respective copyright holders. Companies Marketcap displays them for editorial purposes only.